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-J. 8v W. J. SHERMAN. FLUSHING UISTERN.

No. 551,514. Patented D55. V*1f/7, 1595.

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J. 8v W. J. SHERMAN.

y PLUSHING GISTBRN. No. 551,514. Patented Dec. 17, 1895i (P- i A I-E E R i i [i L FF n l #Mn Witnesses UNITED STATES 1 PATENT EEIcEo JAMES SHERMAN AND l YILLIAM JAMES SIIERBIAN, OF LONDON, ENGLAND.

FLUSHING-CISTERN.

SPECIFICATION forming part of LettersPat/ent No. 551,514, dated December 1'7, 1895.

. Appunti@ and Jimmy 11,1895. serial No. 534,581. (Nmodetl To @ZZ wiz/ont t may concern:

Be it known that We, JAMES SHERMAN and WILLIAM JAMES SHERMAN, subjects of the Queen of Great Britain and Ireland, residing at London, England, have invented an Im proyement in Flushing-Cisterns, of which the following' is a specification.

This invention relates to Iiushing-cisterns; and it consists in improved apparatus Whereby a sudden flush of a definite volume of Water may be given, With small effort, by the pulling of a handle, no further discharge of Water being obtainable until the flushingtrough has again been filled, all Waste from the main supply being prevent-ed by the looking up of the ball-valve during the return movements of the flushing-trough, and the locking of the Iiushing-trough in its filling position While the ball-valve is open.

Figure l is a longitudinal section through our apparatus complete. Fig. 2 is a plan thereo. Fig. 3 is a transverse section thereof. Fig. '1L is a detached and enlarged detail of the locking apparatus with the ball-valve lever locked up. Fig. 5 is a similar enlarged detail with ball-lever down and the ushing-trough locked in position for lling.

A is the internal flushing-trough, conveniently of the shape of a half-sector of a circle, mounted on a pivot or axis'B, resting on bearings O in an external tank I). The pivot or axis .l5 is placed preferably at the radial center of the sector-shaped flushing-trough.

A quadrant or arm E is fitted at the end of the pivot or axis B, outside the external tank D, counterbalanced by a Weight F, and the said arm or quadrant Eis operated by a chain or Wire and handle G, though rod connections and a lifting-handle may be equivalently employed.

The pull of the handle and chain G serves to tilt the iiushing-trou gh A and to discharge its contents, as a sudden flush, into the external tank l), and thence by the iiushing-pipe Il to the Water-closet or other apparatus.

K is the ball-tap tted to the main supplypipe L.

To the ball-lever IM is attached by a pin N, Working in a slot O in the said ball-lever, abridle P, provided with a central locking-pinQ. The said locking-pin Q Works in a fixed guide R attached to the external tank D and coacts with a locking-body S which turns with the trough A and is conveniently formed by an enlarged portion of the pivot or axis B. The lower end of the lockingpin Q rests upon the locking-body S and thus holds the ball-tap lever up, as in Fig. 4, When the flushingtrough is in any other position than that for filling, as in Fig. l. In this filling position of the lushing-trough the pin Q coincides With a .hole T in the locking-body S and the ball-tap lever is allowed to descend to the position shown in Fig. 5, While the flushing-trough is then locked inposition until full. The tilting movement of the flushing-trough, as it returns empty to rest, may be checked by a tongue X on the trough and a stop Y on the external tank. The overiiow of the flushingtrough, should there be leakage at the balltap, may either be permitted to overflow into the external tank and thence discharged by the flushing-pipe I-I, or, preferably, may be carried by a nozzle V, attached to the trough, into a fixed catch-cup and Waste-pipe YV, attached to the external tank. In connection udth this arrangement the lockingpin Q and locking-body S serve to insure the discharge of all Wastewater through said catch-cup and Waste-pipe W', and thus to facilitate the de tection of such overflow.

Having fully described our invention, what We claim, and desire to secure by Letters Patent, is-

1. In a flushing apparatus, a tilting flushing-trough, means for tilting the same, and a locking-body turning with said trough, in combination with a looking-pin, a iixed guide for said pin, and a ball-tap lever connected with said pin, substantially as hereinbefore specified.

2. In a flushing apparatus, a tilting iushing-trough, means for tilting the same, and a locking-body turning width said trough and having a hole, in combination with a lockingpin, a fixed guide for said pin, a bridle for said pin, and a ball-tap lever pivotally attached to said bridle, substantially as hereinbefore specified.

3. An improved flushing apparatus consist ing oi' a tilting trough in the form oi a sector of a circle provided with an overflow nozzle, a fixed external tank provided with a fixed catch-cup and Waste-pipe to coa-ct with said IOO nozzle in the filling position of the tilting names to this specification in. the presence of trough, means for tilting Said trough, L balltwo subscribing Witnesses. tap Within said trough and means for looking T the ball-tap lever when said trough is tilted HERNIAY and keeping the same looked until the trough I l l returns to said filling position, substantially lVitnesses: as hereinbefore specified. RICHARD A. HOFFMANN,

In testimony whereof We have signed our CHARLES A. CARTER. 

